| package system |
| |
| import ( |
| "fmt" |
| "runtime" |
| "syscall" |
| ) |
| |
| // Via http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7b21fddd087678a70ad64afc0f632e0f1071b092 |
| // |
| // We need different setns values for the different platforms and arch |
| // We are declaring the macro here because the SETNS syscall does not exist in th stdlib |
| var setNsMap = map[string]uintptr{ |
| "linux/amd64": 308, |
| } |
| |
| func Setns(fd uintptr, flags uintptr) error { |
| ns, exists := setNsMap[fmt.Sprintf("%s/%s", runtime.GOOS, runtime.GOARCH)] |
| if !exists { |
| return ErrNotSupportedPlatform |
| } |
| _, _, err := syscall.RawSyscall(ns, fd, flags, 0) |
| if err != 0 { |
| return err |
| } |
| return nil |
| } |